-82.42% is the change from 438 to 77
Calculation steps:
[( 77 - 438 ) ÷ 438] x 100 = -82.42%
Formula
Percentage change = [(77 - 438) / 438] x 100
Subtract the new number by the original number
77 - 438 = -361
-361 ÷ 438 = -0.8242009132420092
-0.8242009132420092 x 100 = -82.42%